package com.plm.frame.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.plm.frame.core.Constants;

public class MyLoginInterceptor implements HandlerInterceptor  {

	@Override
	public void afterCompletion(HttpServletRequest arg0,
			HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
			Object arg2, ModelAndView arg3) throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse arg1,
			Object arg2) throws Exception {
		// TODO Auto-generated method stub
		HttpSession session = request.getSession();
		if(session.getAttribute(Constants.LOGIN_USER)!=null){
			return true;
		}else{
			request.getRequestDispatcher("/login").forward(request,arg1);
			return false;
		}
	}

	

}
